Do you mean a linear fit?
Look at functions SLOPE and INTERCEPT; and LINEST if you want lots of
detailed stats.

best wishes
--
Bernard V Liengme
Microsoft Excel MVP
http://people.stfx.ca/bliengme
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"RICHIE" wrote in message
...
fIRST ORDER SERIAL CORRELATION IN excel 2007 wHAT IS THE COMMAND?